* A 35-year-old motorcyclist was shot as he sat at a stoplight in East New York yesterday, police sources said.

The victim, whose name was not released, was sitting at a red right at the corner of Pennsylvania and Flatlands avenues when a dread-locked man in a light-colored Infiniti fired two shots at him at about 1:15 p.m., sources said.

According to authorities, the victim, who was hit in the left arm, was taken to Brookdale Hospital in stable condition. His attacker drove away.

Police sources said the victim and the gunman drove next to each other for several blocks trying to get in front one of another until the gunfire.

* A man was arrested for attacking his stepfather with a machete at their East Flatbush home, authorities said yesterday.

The incident began at about 11:30 p.m. Tuesday, when Othinel Scott, 30, confronted his 47-year- old stepfather outside their East 46th Street house near Avenue D, sources said.

After threatening to kill his stepfather, Scott went inside his house and returned with a machete, cops said.

Scott allegedly swung the weapon at his stepfather, who ran away, but tripped and fell to the ground.

The man then grabbed a garden tool to defend himself, but Scott whacked him in the foot with the machete, sources said.

Scott fled, but was caught a short time later and charged with assault, menacing and weapons possession.

The victim was taken to Kings County Hospital, where doctors put his foot in a cast.

MANHATTAN

* A man who was critically wounded in a Hamilton Heights double shooting has died, police said yesterday.

Hassan Turner, 33, died from his injuries on Tuesday at Harlem Hospital, cops said.

Turner, who was believed to be the target of the shooting, was on West 148th Street near Amsterdam Avenue at about 8:20 p.m. Monday, when at least one gunman opened fire, hitting him several times, sources said.

Keith Richardson, 48, who was walking nearby, was shot in the right arm, cops said.

He was in stable condition at Harlem Hospital.

STATEN ISLAND

* A man was arrested on drug charges after cops found him in possession of prescription pills and marijuana on a New Springville street, police sources said yesterday.